Photoshop: Menu too small on Windows high res display

On my monitor (2560 x 1600) the menu on CC 2014 is too small - so tiny I can hardly read it. Selecting Expereimental 2nd option makes the whole programme far too big. Either so small I can't see it unless I sit very close to the monitor or so big it is unusable.
No problems with PS CC, only PS CC 2014. Having to unistall CC 2014 and go back to CC. Support offer NO solution

With the 2014.2.x update, we've made a change based on user feedback that the 200% setting for menus with the experimental feature 200% setting for "Scale UI 200% for Hight Density Displays" was too large for some customers. We've decoupled the menu scaling from this Photoshop preference.

The menu font size in the 2014.2.x release of Photoshop CC is determined by the operating system settings. For example, on Windows 8.1, you can adjust the menu font size by following the steps in the “Make text and other items on the desktop larger” section of this Microsoft Help topic.

Update: As of 10/25/17, we are closing this program to new applicants. We have a large number of participants already. Thank you to everyone who registered!

The Photoshop team has been listening to your many requests for better scaling options on Windows, and we’re happy to announce that we are ready for beta testing on this feature. Because of the large scale changes involved in this feature, we want to make sure people have the opportunity to test it out before it’s released.

All Windows customers are welcome to join and test, but please note that you will need to have Windows 10 Creators Edition installed in order to use the new continuously scalable user interface and per-monitor scaling. Windows 7, 8 and prior versions of Windows 10 will only support 100% and 200% - as the continuously scalable user interface requires APIs only available in Creators Edition.